- Columbus, Chris, House of secrets (Series), bk. 2
- Battle of the beasts, Chris Columbus & Ned Vizzini ; illustrations by Greg Call
- Columbus, Chris, House of secrets (Series), bk. 1
- House of secrets, Chris Columbus & Ned Vizzini ; illustrations by Greg Call
- Clash of the worlds, Chris Columbus, Ned Vizzini, Chris Rylander ; illustrations by Greg Call